5. Britney Spears, 'Glory'
After 2013's more personal, though often tepid, Britney Jean, Britney Spears' Glory felt like a breath of fresh electro-pop air. A star-studded array of pop's strongest producers and writers – including Julia Michaels, Justin Tranter, Cashmere Cat, BloodPop and more – helped elevate the LP to the levels of dance perfection seen on 2007's Blackout. Single "Make Me" allows Spears to thrive at her coo-iest, and she shines as a Eurotrash sex robot on the electric "Do You Wanna Come Over?" Even the softer moments like the sweeping "Just Luv Me" and the whisper-y "Better" have Spears at her liveliest in years. B.S.